Health vibrator



De.15, 1931. 1 HHBUFFUM 1,836,440

HEALTH VIBRATOR Filed Dec. 5l, 1928 Patented Dec. 15, 1931 c il .fr UNI TED y sT ATES HERBERT `H. annimmt,k orronrnmn, OREGON; Jimmie ,BUrFUrL .nxnccrmx or l maniera. Bur-TUM, nnonasnn; -cAssIcNoR 'ro HERSELF As RESIDUARY the hands orto which theends' of-a v LEGATEE? y HEALTVV'IBBATOB. l

- Y Appueatimiea December 31, nies.v serial no. 329,445.

"Ibis invention relates to exercising" machines" embodying anon-rotatory vibrator element such as a bar which may be grasped ody strap f may be attached, together with means for impartingrapid oscillationsjto said bar transverselyof its longitudinal axis. j y The principal objects of my invention are to simplify such devices, to rendervthem more compact and durable and less'costly, to'make them quieter in operation, and to avoid1 o-r i' reduce, the transmission of objectionable vif- Iis brations to the driving motor and its support.

To these ends, in the preferred embodiment 0f my invention hereinafterldescribedl employ a rapidly revolving wabble shaft upon which the vibrator bar is journaled and from'which it receives a gyratory movement,

' plan view', partly in section, showinga pre-l f '2b and further provide a revolving weightufor counterbalancingl the bar, together with means for varying the relativeeccentricity of said weight and bar to locate their centers vof ravity approximately aty equal distances from axis'of gyration. y' c. Of theaccompanying drawings, Fig.- 1 isa ferredembodiment of my invention.

.'Fig. 2 is across-section on the Vline 2-2 of Fig. 1. i

Fig, 3. s across-section on the line ,3f-Sofi ]3`i, ;.1.` r A. In the drawings, 10 is a vvibrator bar consisting of a central hub and .a pair of arms r projecting therefrom in opposite directions and adapted to be graspedinv the hands or to have attached Athereto thefends of a body strap 11. Theparms of said barareformed with a series of spaced lugs 12 ontheir upper sides forpositioning said strap endsat varying distances from the hub in order'to `obtain different amplitudes .of movement. :The bar being thus connected with the user, either y directly orthrough the strap',is thereby held '45 Y l from rotation.`

@13 is a wabbleshaft mounted' inanti-fric` tion bearings 14y in `the hub of bar 10,and placed at a slight :angle to .the axis of revolution of saidshaft so that a gyratory movement will be imparted tothe 'bar as said'shaft is rotated therein, and the arms of said-bar will `b'e'transversely oscillated. c

` 15 is a' rotary cylindrical headhavingy a reduced Astem or shaft member' 16 axially lapertured and provided with a set-screw 17 whereby' it is adapted to receive and be detachably secured to the shaft 18 of an electric motor 19; The axis ofrotation of said motor shafts, coinciding with that of thehead 15 constitutes the axis of gyration of the vibrator bar assembly includingthe wabble'shaft.

Stem 1'6 has mountedthereon a counterbalance .weight in the forni of a wheel .20 secured in' pla-ce by. the sets'crew 17 ,said Wheel being formed with a recess 21 on the same side oftheaxis of-shaft 18 as the center of gravity ofthe vibrator bar assembly so that the center of gravity of wheel 20 'will bev on v the f opposite side' of lsaid axis Aand maybe caused; to counteracttlie imbalance rproduced by the angularity ofshaftl and the .consequent eccentricity of thebar assembly.

- The head 15 is transversely bored through onan4 axis perpendicular to the plane cf l the centers of gravity ofthebarfassembly and kthe counterbalancefwheel, and'in said bore is mounted acylindrical pivotshaft or member 42.2,vvhich is-apertured transversely of its axis to receivethel rear end portion of the wabble shaft 13,- a blindfor flush-head set-screw23 being provided in one endof said pivot member forl securing the wabble shaft thereto. Aeollar 24 is provided-'for spacingthe innerbear l ing M fof shaft'l from `the 'pivotmember- `,'l`he inner extremity of shaft 13 has a pro jection 25 formed with opposite, slightlyconvex faces against which bear the inner ends of a pair of blind screws 26, 27 threaded j ectionable vibrations to the motor'19 andits support. In manufacturing these vibrator bars 10 on a commercial scale, it is practically impossible to secure aV uniform distribution of the metal in different individual bars. Consequently their centers of gravity Willv vary slightly, and no uniform angularity of the Wabble shaft 13 Which would produce an accurate balance in all cases could be obtained Without undue expense. By means of the described adjustment, however, it is a comparatively simple matter to arrive at a satisfactory degree of balance in one or more trials, and this setting can be obtained at the factory Where the machines aremade so that they will goto the purchaser in a correctly balanced condition. f

AWhile I have described a preferredform of construction, it will be understood that the details may be variously modified Within the Vscope of the appended claims.

I claim l. An vexercising machine ycomprising a vibratorY bar including a hub and arms ex# tending therefrom in opposite directions, a

, looped body strap having its ends connected with the respective arms, a wabble shaft mounted to turn in said' hub, 4andmea'nsV for rapidly revolving said shaft on an axis finclined tothe'axis of the shaft. ,l 2. An exercising machine' comp'risingfa head structure axially apertured Vto receive a motor shaft and provided with means for detachably Vsecuring, it to theshaft, a Wabble shaft carried by said head structure at an inclination Vto the axis of rotation ofthe latter, and a nonlrotatory strapV bar journaled on said `Wabblefshaft transversely of the axis ofr'rotation. l 3'.' exercising machine comprising a non-rotatory strap bar, means engaging its middle portion for imparting a gyratory movement thereto, means for counterbalancing saidbar, and means for varyingtherela tive eccentricity of said bar and the counter-l balancing means.

4. An exercising machine comprising -a non-rotatory strap element, a Wabble shaftro` tatably engaging its middle portion for imparting a gyratory movement thereto, a shaft member for revolving said Wabble shaft, and acounterbalance carried by said shaft member. e

,5.v An' exercising machine comprising a non-rotatory strap bar, a Wabble shaft engagingits middle portion for impartinga gyra# nonrotatory vibratorelement, awabble shaft yfor imparting a gyratory movement thereto, a rotary head, a pivot member carrying said Vshaft and mounted t'oturn' in said head Vfoi` the purposeof'va'rying theinclination of the shaft, and means for fixing saidlpivotv meinber-atdifferent angles in the head,

7. An exercising machine comprising a nonlrotatory vibrator element, a wabble shaft mounted to turn on said element for impartinga` gyratory movement thereto, said shaft vhaving van adjusting projection at its inner end, a rotary head, a pivot member carrying said shaft andmount'edto turn in said head,

and av pair ofscrews mounted in said head and bearing on opposite sides of said adjusting proj ectionfor fixing said shaft and pivot member at different angles in tliehead.

8. An exercising machine comprising a rotary head'structure, having astem or shaft member, a counterbalance Weight carried by said shaft member, a wabble shaft carried by said head structure at an angle of inclination to the latters axis ef rotation on the side of said axis opposite to the counterbalance Weight, and a non-rotatory vibrator element journaledon said Wabble shaft.

9. An exercising 'machine comprising a rotary head structure having a stem or vshaft member axially apertured to receive a motor shaft, 'a counterbalance Weight structure carriedby said shaft member, a setscrew passing through said Weight structure and shaft member for securing the two together and for de'- tachably secu-ring them upon themotorfshaft, a non-rotatory vibrator bar counterbalanced by said Weight'andmeans onsaid head structure for imparting a' gyratory movement .to

said vibrator bar. n l v 10. An exercising machine comprising. a massaging belt, a motor vhaving a rotary shaft, and means for vibrating saidbelt, said means including a member adapted to engageJ the ends of said belt and ashaft operatively associated With'said member, ixed'to said motor yshaft and inclined thereto.

AS112 Anexercising machine-comprising a tWo ended, elongatedfiexible element, a motor having a rotary shaft, and means for vibrating vsaid element, saidmeans including a shaft fixed to said motor shaft and inclined thereto, and a member attached to the ends ofthe flexible element,mounted on said inclined shaft, said inclined shaft' being rotatable relative to said member to give said member a Wabble movement.

vv12. Inan exercising. machine of the character described, in combinati'on, a 4rotary shaft,aninclined shaft fixed thereto, a mashand this 22 saging element, 'amember having outwardly extending arms adapted for attachment to the ends of said element', a central hub, and a ball bearing thrust member interposed between said hub and said inclined shaft.

In witness whereof I have hereunto set my day of December, 1928.

HERBERT H. BUFFUM. 

